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Mortgage Comparison Calculator — 15-Year vs 30-Year with PMI, Tax

Compare 15-year vs 30-year mortgages side by side with different rates, PMI, property taxes, and insurance. Free, instant, and accurate.

✓ Formula verified: January 2026For informational purposes only

15-Year vs 30-Year Mortgage

Results below

Enter Values

$
$
$
15-Year Monthly Payment (incl. taxes & insurance)
$3,114.67

Total Interest Paid (15-Year)

$150,640

Total Interest Paid (30-Year)

$408,142

Total Savings with 15-Year

$347,502

Extra Monthly Cost for 15-Year

$592.05

_breakdown

{"loanAmount":320000,"downPaymentPct":"20.0","hasPmi":false,"monthlyPmi":0,"monthlyTax":400,"monthlyInsurance":100,"basePayment15":2614.6670547876274,"basePayment30":2022.6176751774892}

What if your home price changes? $360000 → $2,747.83 · $400000 → $3,114.67 · $440000 → $3,631.50

Scenario Comparison

Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
Share your result
15-Year vs 30-Year Comparison
Monthly Payment$3,11515-yr$2,52330-yrTotal Interest$150,64015-yr$408,14230-yr

Total Savings

$347,502

63% less interest

Extra Monthly (15yr)

$592

Key Insight

15-year: $3,115/month — $150,640 interest. 30-year: $2,523/month — $408,142 interest. You save $347,502 with the 15-year term.

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